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All Journal Wahana Teknik J-Proteksion: Jurnal Kajian Ilmiah dan Teknologi Teknik Mesin Procedia of Social Sciences and Humanities
Putri Sundari
Universitas Gresik
Humanities Automotive Engineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Decision Sciences, Operations Research & Management Energy Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Social Sciences

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Perencanaan Belt Conveyor System Sebagai Alat Angkut Box dengan Kapasitas 20 Ton/Jam Putri Sundari; Wardjito; Sa’ad Bayu Hariyono
Wahana Teknik Vol 9 No 1 (2020): Wahana Teknik
Publisher : Wahana Teknik

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Abstract

The study aimed to design belt conveyor system for box transportation with capacity 20 Ton/hours with the horizontal line distance 20 m. This study located in PT. Intan Ustrix, Jl. Roomo No. 425 Manyar, Gresik, Jawa Timur. The results of calculation showed that belt conveyor needs specifications: rubber width 650 mm, speed of belt converter 1 m/s, driver motor power 0,699 kW, and installed motor power 2,2 kW. Head (drive) pulley diameter 500 mm, shaft diameter 125 mm, tail pulley diameter and take-up pulley 400 mm, bend pulley and snub up pulley diameter is 250 mm. Specification of rubber belt conveyor is fabric type and general (M) 1.200 mm, EP 630/4 Ply. Specification of electrical motor are 2,2 kW, 380 V, 3 Phase, 50 Hz, 4 Poles, Speed 1500 rpm, with gear box specification (reducer) is bofiglioli VF 72, with ratio 1:40. Keywords: Belt Conveyor, Box Transportation, Design.
Pengaruh Jumlah Plug pada High Pressure Heater (HPH ) sebagai Pemanas Awal Air Umpan Boiler PLTU PT X Putri Sundari; Meryana linda; Beni Kesuma Sigiro
J-Proteksion Vol 6, No 2 (2022): J-Proteksion
Publisher : Universitas Muhammadiyah Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32528/jp.v6i2.6675

Abstract

High Pressure Heater (HPH) merupakan suatu komponen penukar panas dengan tipe shell and tube yang digunakan untuk memanaskan feed water sebelum masuk ke boiler sehingga mengurangi waktu perebusan saat di boiler. Penelitian ini dilakukan di salah satu PLTU di PT X, yang mana peralatan HPH mengalami kebocoran tube sehingga mempengaruhi proses heat transfer dan mempengaruhi efisiensinya. Salah satu metode pemeliharaan saat terjadinya kebocoran tube yaitu pemberian plug sehingga fluida air umpan yang melewati tube tidak bercampur dengan uap ekstraksi turbin. Penelitian ini bertujuan untuk mengetahui batas jumlah plug maksimal yang diizinkan pada HPH sampai HPH dinilai tidak efisien lagi dan perlu dilakukan retubing. Metode pengambilan data dilakukan dengan observasi di lapangan serta wawancara kepada bidang perencanaan dan pengendalian operasi serta central control room (CCR) di PLTU Unit 4, didukung studi kepustakaan untuk melengkapi parameter atau data untuk mendukung hasil penelitian. Tahap awal penelitian ini dilakukan perhitungan besar perpindahan panas pada komponen HPH dengan rumus log mean temperature difference (LMTD) dan hasilnya menunjukkan bahwa besar perpindahan panas maksimum antara uap ekstraksi turbin dengan feed water sebesar 52,72 MW dan perpindahan panas minimumnya sebesar 10,23 MW. Penelitian ini juga melakukan analisis tentang batas jumlah plug maksimal yang diizinkan pada HPH sampai tube HPH tersebut tidak efisien lagi dan perlu dilakukan retubing. Berdasarkan hasil perhitungan, jumlah plug maksimal yang diizinkan yaitu sebesar 60 plug dengan besar heat transfer 9,14 MW atau ± 10% dari desain peralatan atau aktual operasi yang diizinkan.
Autocad Application Training for SMK Karya Bakti Gresik in Supporting Independent Learning Program for the Independent Campus (MBKM): Pelatihan Aplikasi Autocad bagi SMK Karya Bakti Gresik dalam Mendukung Merdeka Belajar Kampus Merdeka (MBKM) Meryanalinda; Putri Sundari; Dedy Rachman Ardian
Procedia of Social Sciences and Humanities Vol. 3 (2022): Proceedings of the 1st SENARA 2022
Publisher : Universitas Muhammadiyah Sidoarjo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21070/pssh.v3i.159

Abstract

CAD (Computer Aided Design) is a computer program for drawing a product. The use of CAD can be in the form of 2-dimensional or 3-dimensional drawings. The advantage of using this CAD computer program is to make it easier and faster to create and change a product/component drawing. Besides that, this program is also useful to make it easier to complete image data such as material type, dimensions, number of products and so on. Mastery of the AutoCAD application is very necessary for students and teachers of Vocational High Schools (SMK), especially in the mechanical engineering department of SMK Karya Bhakti Gresik. This is because they have limited facilities and infrastructure in learning AutoCAD. The ability to use AutoCad for vocational students is a provision to enter the world of work after graduating from school, one of which is to work in the industrial world. Where in the era of Industry 4.0, many companies demand AutoCad capabilities as a condition for joining vocational graduates. Based on this, the competence of AutoCad for SMK Karya Bakti Gresik students needs to be improved. One of the learning processes to improve this competency is to provide AutoCAD application training for SMK Karya Bhakti Gresik students. The training method used is a workshop, where students are given material about AutoCad, then practice AutoCAD directly at the Multimedia Laboratory of the University of Gresik. The participants of this training focused on students in grades X and XI of the Mechanical Engineering Department of SMK Karya Bakti with a training duration of 2 days.
Co-Authors Beni Kesuma Sigiro Dedy Rachman Ardian Meryana linda Meryanalinda Sa’ad Bayu Hariyono Wardjito